Visualize Latest Observations from the Ambient Weather Stations

Imports

import glob
import xarray as xr
from bokeh.models.formatters import DatetimeTickFormatter
import hvplot.xarray
import holoviews as hv
from distributed import Client
import warnings

warnings.filterwarnings("ignore")
hv.extension('bokeh')

Start up a Dask Cluster

client = Client()
client

Client

Client-0e299226-1135-11f0-8b1c-002248092f3e

Connection method: Cluster object	Cluster type: distributed.LocalCluster
Dashboard: http://127.0.0.1:8787/status

Cluster Info

LocalCluster

1be7073f

Dashboard: http://127.0.0.1:8787/status	Workers: 4
Total threads: 4	Total memory: 15.62 GiB
Status: running	Using processes: True

Scheduler Info

Scheduler

Scheduler-51d89b05-cb38-4c0d-a91f-7eac1c5846f0

Comm: tcp://127.0.0.1:34631	Workers: 4
Dashboard: http://127.0.0.1:8787/status	Total threads: 4
Started: Just now	Total memory: 15.62 GiB

Workers

Worker: 0

Comm: tcp://127.0.0.1:36969	Total threads: 1
Dashboard: http://127.0.0.1:38413/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:40457
Local directory: /tmp/dask-scratch-space/worker-decjk1ug

Worker: 1

Comm: tcp://127.0.0.1:39499	Total threads: 1
Dashboard: http://127.0.0.1:37723/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:43551
Local directory: /tmp/dask-scratch-space/worker-d2zu2pdt

Worker: 2

Comm: tcp://127.0.0.1:34627	Total threads: 1
Dashboard: http://127.0.0.1:34691/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:44639
Local directory: /tmp/dask-scratch-space/worker-e7h3lmyy

Worker: 3

Comm: tcp://127.0.0.1:41063	Total threads: 1
Dashboard: http://127.0.0.1:33231/status	Memory: 3.90 GiB
Nanny: tcp://127.0.0.1:36657
Local directory: /tmp/dask-scratch-space/worker-scvhbaqv

Read the Sorted Data, Using the Last File

files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))

ds = xr.open_mfdataset(files[-60:])

---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
Cell In[3], line 3
      1 files = sorted(glob.glob('../../data/surface-meteorology/*/*/*/*.nc'))
----> 3 ds = xr.open_mfdataset(files[-60:])

File ~/miniconda3/envs/instrument-cookbooks-dev/lib/python3.10/site-packages/xarray/backends/api.py:1597, in open_mfdataset(paths, chunks, concat_dim, compat, preprocess, engine, data_vars, coords, combine, parallel, join, attrs_file, combine_attrs, **kwargs)
   1594 paths = _find_absolute_paths(paths, engine=engine, **kwargs)
   1596 if not paths:
-> 1597     raise OSError("no files to open")
   1599 paths1d: list[str | ReadBuffer]
   1600 if combine == "nested":

OSError: no files to open

Plot the Data

formatter = DatetimeTickFormatter(hours="%d %b %Y \n %H:%M UTC")

variables = ['outdoor_temperature', 'outdoor_dewpoint', 'hourlyrainin', 'solarradiation']

panels = []
for variable in variables:
    panels.append(ds[variable].hvplot.line(x='time', by='station', xformatter=formatter))
hv.Layout(panels).cols(1)